Ring gauge



July 5,1927. 3 ,378

- s. o. MOUNTFORD RING GAUGE Filed March 25; 1926 r v INVENTOR SIDNEY 0- MOUN TFozp Br I W Patented July 5, 1927.

entree 1,534,373 parent orrics.

SIDNEY O. MOUNTFGRD, F NEl/VABK, NEW ASSIGNOR TO.MOU1\TTFORD -BROS.,

OF NEWARK,

NEVJ JERSEY.

RING GAUGE.

This invention relates to a ring gauge, and it is particularly adapted for use as a finger ring gauge, altho not necessarily limitedin principle thereto.

lVhen used as a finger ring gauge, it has a wide field of usefulness. So far I am aware, the usual practice is for a jeweler, in determining the size of ones finger for a ring, to try a series of rings of different diameters on the persons finger, until the proper size is found. This means that a large number of ring gauges must be kept on hand, and the process of determining the proper fit is not altogether easy, to say nothing of the time involved. I I am aware that adjustable finger ring gauges have been heretofore proposed but those with which I am familiar are more or less complicated, and not generally used."

' It is therefore, the principal object of my invention to provide a ring gauge which is easily and quickly adjustable and one which registers the exact size which'maybev read directly from the gauge. f

Another object of mvinvention is to provide a ring gauge, which is simple, cheap and easy to manufacture, and hence one that is relatively inexpensive.

These and other objects will be apparent to one skilled in this particular art, after a reading of the specification taken infconnection with the annexed drawing, wherein Figure 1 is a plan view looking down on the top of the gauge.

Figure 2 is a side view of Figure l. Figure 3 is a section on the line 3 30f Figure 1, while,

Figure 4 is a section on the line lof Figure 1.

Figures 3 and l are on an enlarged scale.

In the various views of thedrawings,

wherein like numbers refer to correspond- 111g parts, 1. 1s a frame which is relatively stiff and which I prefer to make of suitable metal, such as nickel-silver, and when made of metal, one end is formed into a ring or loop 2, through which a finger of tee operator may be inserted for holding the when using it. The frame 1, has its opposite edges 3 and 4t bent over forming a channel or guideway therebetween. At the same time the'bent over edges 3 and 4; act to stiflen the frame. 7 I

The frame 1, is provided with a longitudinal 41?? slot 5,"an'd the end of the frame 1, opposite the loop 2, is provided with a support portion 6., which has a slot 7, through which passes flexible member 8, one end of which is fastener to the portion 6, in any satisfactorymanner as by the metal of the portion 5, being punched. downward so as to form an eyelet, over which the end of 8 is positioned. A lip 9 of the flexible member 8 extends a short distance beyond the support portion 6 and acts to complete a relatively smooth and true ring surface, and also assists in guiding the flexible member 8 into the slot 7 0f the support member 6', particularly when small and preferably the edge thereof has serrations 13, which are engaged by the operator using his thumb for moving the operating memberll. back and forth on the frame 1.

In addition to the log 10, which passes through the slot 5, I prefer to provide an indentation or projection 14, in the member 11, which indentation or projection extends.

into the slot 5. so as to assist in positioning the member 11 on the frame 1, and to assist in preventing any undue sidemotion of the member 11 outlieframe.

A scale is provided, preferably on the frame 1. which registers quarter sizes, the full sizes and half sizes being indicated on one sidc.fsuch as de ignated by the numbers which illustrates full sizes and the quarter sizes arranged on the opposite sides of the slot 5.

In the, operation of my device the frame 1, is. taken in the hands of the operator, preferably so that the middle finger passes through the 100132, the operating member 11, is push-ed to the opposite end of the frame, that the ring formed by the flexiblemembens, is. atit-s maximum size and the member 8, then passed over the object to be measured after which the operators thumb engagi the part 12 of the operating member 11, draws the operating member toward the loop 2, thereby pulling the flexible member 8, so'as to make the ring formed thereby conform to the object being moa. ured. When the proper fitting is obtained the size is read from the scale on the frame.

The flexible member 8 may be made of any satisfactory material, either metal or some other substance, suitable for the purpose, but I preferably make all of the parts of metal, such as nickel-silver, and when so constructed only three parts are required; the frame 1, the flexible member 8, and the opcrating member 11.

It will be thus seen that I have provided aring gauge of a very few number of parts; one that is easy to manufacture, and easy to operate, and it will also be obvious that my invention is susceptible of certain changes for example the measuring ring 8 may be somewhat narrower than the part which fits in the guideway between the side members 3 and 4-, and the method of attaching the flexible member 8 to the frame 1, may be differentfromthat illustrated. However, such changes are considered to be within the scope of my invention, and the range of the appended claims.

Having thus described my invention, what I claim is: I

1. A ring gauge comprising; a one piece frame having a longitudinal slot thereln, and a relatively wide guideway formed by the bent over edges of the frame and a flexible member formed ring shaped, and having one end attached to the frame, at one of its ends, and the other end of the flexible member ontering the guideway closely adjacent the point where its first mentioned end is attached to the frame, and a hand operated member movably carried on only one side of said frame, and having a part extending through said slot and attached to the end of said flexible member, which is positioned in said guideway, saidframe having means cooperating with said movable member to indicate the size of said ring shaped member.

2. A ring gauge comprising; a frame having a longitudinal slot therein, a longitudinal guideway and a transverse slot registering with said guideway, a flexible member formed ring shaped and having one end attached to the frame near said transverse slot and the other end passing through said slot into the guideway, amovable member car ried on said frame, and means associated therewith and extending through said longitudinal slot and fastened to the end of the flexible member which is positioned in said guideway, said frame having means associated with said movable member to indicate the size of said ring shaped member.

3. A ring gauge comprising; a frame having a loop at one end to act as a holder and having its edges formed to provide a channel shape guideway on one side of the frame, said frame having its end opposite said loop offset and having a transverse slot in said offset portion registering with said guide- Way, a flexible member formed ring shaped and having one end attached to the frame near said transverse slot and the other end passing through said slot into the guideway, a member movably carried on said frame and means associated. therewith and extending through said longitudinal slot and fastened to the end of the flexible member which is positioned in said guideway, said frame havingnieans cooperating with said movable member to indicate the size said ring shaped member.

4. A ring gauge comprising; a frame hav ing a loop at one end to act as a holder and the edges formed to provide a channel shaped longitudinal guideway, said frame having its end. opposite said loopbffset and a transverse slot in said offset portion registering with said guideway, a flexible member adapted to be drawn into the shape .of a ring having one end fastened to said frame offset portion and the. other end passing through said slot into said guideway, said flexible member having a lip extending beyond said ofi'set frame portion for the purpose described. an operating member for the flexible member carried on the frame, means for attaching the operating member to the end of the flexible member lying in said guideway, said frame having-means cooperating with said movable member to indicate the size of the ring shaped by movement of said flexible memben. 5. A ring gauge comprising; a frame having means for supporting the same on a finger of the user, said frame having a guideway substantially the width of the frame, and formed by bending over the edges of the frame and an integral guide and supportportion at one end, said portion having a slot therein to cooperate with said guideway, a flexible member adapted to take a cylindrical shape and having one end fastened to the frame and the other passing over said support portion and through said slot into said guideway, an operating member for the flexible member carried on the frame, means for attaching the operating member to the end of the flexible member lying in said guideway, said frame having means cooperating with said movable member to indicate the size of the ring shaped by movement of said flexible member.

6. A ring gauge comprising; a frame having means for supporting the same on a finger of the user, said frame having a guideway substantially the width of the frame,

yond said support portion for the purpose described, the other end of said flexible member passing over said support portion through the slot into said guideivay, said frame having a longitudinal slot therein, an operating member slida-ble on the frame and having a tongue extending through said longitudinal slot and fastened to said flexible member in the guideway, means for assisting in preventing said operating member from twisting on the frame, said frame having a scale cooperating With said operating member to show the size of the ring formed by the flexible member on actuation of the operating member.

7 A ring gauge composed of three parts, a frame having one end formed into a loop for handling the frame and its edges bent over to form a guideway, a flexible member circularly formed and having one end fixed to an end of the frame and its other end held in said guideWay and adapted to be moved longitudinally therein, an operating member carried by the frame and attached to the movable end of said flexible member, said frame preferably having a scale for indicating the size of the circular part formed by the flexible member-on movement of the operating member.

8. A ring gauge comprising; a frame having a channel shaped guideway and a support portion at one end having an opening registering With the guideWay, a flexible membercircularly formed and having one end fastened to said support portion and its free end passing through said opening into the guideway closely adjacent said fastened end, a hand operated member slidably carried on the frame and attached to the free end of said flexible member for the purpose described.

In testimony whereof, I aflix my signature.

SIDNEY O. MOUNTFORD. 

